Zhè / kē / xíng / xīng / de / piān / xīn / lǜ / hěn / xiǎo / suǒ / yǐ / guǐ / dào / jiē / jìn / yuán / xíng这颗行星的偏心率很小,所以轨道接近圆形。This planet has a small eccentricity, so its orbit is nearly circular.